<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script>
        // for(var i= 1; i<=10;i++) {

        //         for(var j=1; j<=i;j++){
        //             document.write('☆');
        //         }
        //         document.write('<br>');
        // } 
         for(var i= 1; i<10;i++) {

                for(var j=1; j<=i;j++){
                    document.write(j+'X'+i+'='+i*j+'  ');
                }
                document.write('<br>');
        } 
    </script>
</body>
</html>